Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: WSPNGAXA03T

Remotes:

Switch Switch name Switch type
AGSTGADLRS1  AUGUSTA  D10 
CHTNSCPSRS1  CHARLESTON  D10 
CLWTFL05RS0  CLEARWATER  RS 
KNVMTN50RS0  KNOXVILLE  RSS 
NAGSSC03RS0  NORTH AUGUSTA  D10 
NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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